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    <title>344. 反转字符串</title>
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    <script>
        //         编写一个函数，其作用是将输入的字符串反转过来。输入字符串以字符数组 s 的形式给出。

        // 不要给另外的数组分配额外的空间，你必须原地修改输入数组、使用 O(1) 的额外空间解决这一问题。

        

        // 示例 1：

        // 输入：s = ["h","e","l","l","o"]
        // 输出：["o","l","l","e","h"]
        // 示例 2：

        // 输入：s = ["H","a","n","n","a","h"]
        // 输出：["h","a","n","n","a","H"]
        

        // 提示：

        // 1 <= s.length <= 105
        // s[i] 都是 ASCII 码表中的可打印字符
        function reverStr(s) {
            let left = 0,
                right = s.length - 1;
            while (left <= right) {
                let m = s[left];
                s[left] = s[right];
                s[right] = m;
                left++;
                right--;
            }
            return s;
        }
    </script>
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